Quick and helpful. I had bought a new phone and copied my previous data directly over, thinking everything would be fine (I hadn't even thought of 2FA websites with Google Authenticator activated). Roughly 30 days later, I'm locked out of my account because I figured I was above needing to save my backup codes, haha. This helped out with my XenForo installation that needed it, managed to log back in and reset my Authenticator. Time to start saving backup codes whenever they're given.